MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 c73e70bcabefab8d66385cb8a5fbc4a39451809dc778a19f8a177ee8254d0fde. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry

Gozi

Vendor detections: 10

Maldoc score: 10

Intelligence 10 IOCs YARA 3 File information Comments

SHA256 hash:	c73e70bcabefab8d66385cb8a5fbc4a39451809dc778a19f8a177ee8254d0fde
SHA3-384 hash:	81acc018f126435164ead0d6f6f24124e1d3dcc553fec5e1828df29d4219b3679998f143c76dd4d9ba5188b75f6e016d
SHA1 hash:	78266b0607bce9968abdd941df997b330de6063e
MD5 hash:	36125e116418e73ba7dab25fe0d30f1a
humanhash:	grey-march-happy-potato
File name:	2022_marzo_FAT_1.xls
Download:	download sample
Signature	Gozi Create hunting rule
File size:	70'144 bytes
First seen:	2022-03-28 07:40:17 UTC
Last seen:	2022-03-28 13:09:52 UTC
File type:	xls
MIME type:	application/vnd.ms-excel
ssdeep	1536:4zLelYkEIbSkKBEqEXPgsRZmbaoFhZhR0cixIHm0sd50qJIbnGl/j6msijOg:4zKlYkEIuPm3fNRZmbaoFhZhR0cixIHa
TLSH	T15C630755B656D969D86907314CE7C7FB7336FC006E6B87073288B33E3FB8A948902642
Reporter	pr0xylife
Tags:	DHL Gozi isfb ITA Ursnif xls

Office OLE Information

This malware samples appears to be an Office document. The following table provides more information about this document using oletools and oledump.

OLE id

Maldoc score: 10

OLE dump

MalwareBazaar was able to identify 14 sections in this file using oledump:

Section ID	Section size	Section name
1	118 bytes	CompObj
2	256 bytes	DocumentSummaryInformation
3	192 bytes	SummaryInformation
4	29921 bytes	Workbook
5	461 bytes	_VBA_PROJECT_CUR/PROJECT
6	104 bytes	_VBA_PROJECT_CUR/PROJECTwm
7	19097 bytes	_VBA_PROJECT_CUR/VBA/Foglio1
8	1014 bytes	_VBA_PROJECT_CUR/VBA/Questa_cartella_di_lavoro
9	4157 bytes	_VBA_PROJECT_CUR/VBA/_VBA_PROJECT
10	3765 bytes	_VBA_PROJECT_CUR/VBA/__SRP_0
11	1102 bytes	_VBA_PROJECT_CUR/VBA/__SRP_1
12	1047 bytes	_VBA_PROJECT_CUR/VBA/__SRP_2
13	1726 bytes	_VBA_PROJECT_CUR/VBA/__SRP_3
14	563 bytes	_VBA_PROJECT_CUR/VBA/dir

OLE vba

MalwareBazaar was able to extract and deobfuscate VBA script(s) the following information from OLE objects embedded in this file using olevba:

Type	Keyword	Description
IOC	kernel32.dll	Executable file name
Suspicious	CreateObject	May create an OLE object
Suspicious	Lib	May run code from a DLL
Suspicious	URLDownloadToFileA	May download files from the Internet
Suspicious	Hex Strings	Hex-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)
Suspicious	Base64 Strings	Base64-encoded strings were detected, may be used to obfuscate strings (option --decode to see all)

Intelligence

File Origin

# of uploads :

# of downloads :

630

Origin country :

n/a

Vendor Threat Intelligence

Malware family:

n/a

ID:

File name:

sample20220328-01.xls

Verdict:

Malicious activity

Analysis date:

2022-03-28 07:33:12 UTC

Tags:

macros maldoc-5

Link:

https://app.any.run/tasks/f97837fa-bc1d-45a2-ad4f-d50056923f2a

Note:

ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample

Verdict:

Malicious

File type:

application/vnd.ms-excel

Has a screenshot:

False

Contains macros:

True

Detection:

n/a

Link:

https://www.capesandbox.com/analysis/258465/

Detection(s):

SecuriteInfo.com.Office.Macro-12.UNOFFICIAL

Result

Verdict:

Clean

Maliciousness:

Behaviour

Creating a window

Launching a process

Searching for the window

Result

Verdict:

Malicious

File Type:

Legacy Excel File with Macro

Link:

https://app.docguard.net/c73e70bcabefab8d66385cb8a5fbc4a39451809dc778a19f8a177ee8254d0fde/results/dashboard

Document image

Image:

Download PNG

Verdict:

Malicious

Threat level:

10/10

Confidence:

100%

Tags:

evasive macros regsvr32 regsvr32.exe

Link:

https://www.filescan.io/uploads/624166901f204239484056b9/reports/57edbf3e-c977-479a-b72a-787911dda636/overview

Label:

Malicious

Suspicious Score:

7.8/10

Score Malicious:

79%

Score Benign:

21%

Link:

https://www.malware.ai/gui/files/?id=f31b6ed9-4fde-435a-987c-2ca7794414e3

Result

Verdict:

UNKNOWN

Link:

https://labs.inquest.net/dfi/sha256/c73e70bcabefab8d66385cb8a5fbc4a39451809dc778a19f8a177ee8254d0fde

Details

Macro Contains Suspicious String

Detected a macro with a suspicious string. Suspicious strings include privileged function calls, obfuscations, odd registry keys, etc...

Macro with DLL Reference

Detected macro logic that will load additional functionality from Dynamically Linked Libraries (DLLs). While not explicitly malicious, this is a common tactic for accessing APIs that are not otherwised exposed via Visual Basic for Applications (VBA).

Document With Minimal Content

Document contains less than 1 kilobyte of semantic information.

Result

Threat name:

Unknown

Detection:

malicious

Classification:

expl

Score:

68 / 100

Link:

https://www.joesandbox.com/analysis/965581

Signature

Document contains an embedded VBA macro which may execute processes

Document contains an embedded VBA macro with suspicious strings

Document exploit detected (process start blacklist hit)

Document exploit detected (UrlDownloadToFile)

Sigma detected: Microsoft Office Product Spawning Windows Shell

Sigma detected: Regsvr32 Anomaly

Sigma detected: Regsvr32 Command Line Without DLL

Behaviour

Behavior Graph:

Download SVG

Detection:

n/a

Link:

https://mwdb.cert.pl/sample/c73e70bcabefab8d66385cb8a5fbc4a39451809dc778a19f8a177ee8254d0fde/

Threat name:

Script.Trojan.Woreflint

Status:

Malicious

First seen:

2022-03-28 10:24:03 UTC

File Type:

Document

Extracted files:

AV detection:

7 of 25 (28.00%)

Threat level:

5/5

Detection(s):

Suspicious file

Link:

https://check.spamhaus.org/check/?searchterm=y47hbpfl56vy2zryls4kl66euokfdae5y54kdh4kc57oqjknb7pa._file

Result

Malware family:

n/a

Score:

1/10

Tags:

n/a

Link:

https://tria.ge/reports/220328-jh493adcam/

Behaviour

Checks processor information in registry

Enumerates system info in registry

Modifies Internet Explorer settings

Modifies registry class

Suspicious behavior: AddClipboardFormatListener

Suspicious use of FindShellTrayWindow

Suspicious use of SetWindowsHookEx

Office loads VBA resources, possible macro or embedded object present

Verdict:

Malicious

Link:

https://www.vmray.com/analyses/c73e70bcabef/report/overview.html

Please note that we are no longer able to provide a coverage score for Virus Total.

Threat name:

Malicious File

Score:

0.80

Link:

https://yomi.yoroi.company/submissions/c73e70bcabefab8d66385cb8a5fbc4a39451809dc778a19f8a177ee8254d0fde

YARA Signatures

MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:	BitcoinAddress Create hunting rule
Author:	Didier Stevens (@DidierStevens)
Description:	Contains a valid Bitcoin address

Rule name:	malware_shellcode_hash Create hunting rule
Author:	JPCERT/CC Incident Response Group
Description:	detect shellcode api hash value

Rule name:	TA505_Maldoc_21Nov_2 Create hunting rule
Author:	Arkbird_SOLG
Description:	invitation (1).xls
Reference:	https://twitter.com/58_158_177_102/status/1197432303057637377